Concerto in due Cori con Flauti obbligati [RV 585]

The reference source of Concerto RV 585 is a microfilm of the autograph ms. of the score, available at Biblioteca del Palazzo Chigi Saracini di Siena (1708-1709). The microfilm is annexed to the original ms., now unreadable, Mus.2389-O-77, Digitale Bibliothek, RISM ID no. 212000231, SLUB Dresden.